Can-beading machine



Sept; '17, 1946.

w. I. GLADFELTER ETAL CAN BEADING MACHINE 7 Filed June 22, 1943 ,7Sheets-Sheet l Sept. 17, 1946. w. GLADFELTER ET AL 2,407,776

CAN BEADING MACHINE 7 Filed June 22, 1943 7 Sheets-Sheet 2 Sept. 17;1946. w. '1. GLADFELTER ETAL CAN BEKbING MACHINE Filed June 22, 1943 7Sheets-Sheet 5 P 17, w. l. GLADFELTE R El"AL 2,407,776

- CAN BEADING MACHINE Filed June 22, 194:5 "7 Sheets-Sheet 4 Sept. 17,1946. w. l. GLADFELTER ET AL ,7

" CAN BEADING MACHINE Filed June 22, 1943 7 Sheets-Sheet-5 JwucutomWiltzle Z filadfeltel P 1946- w. l. GLADFELTER ET AL I 2,407,776

CAN BEADING MACHINE F iled June 22, 1943 7 Sheets-Sheet 6 m1 1m mummmIII VVilizle, I. Gladlblieh.

awuc'ntom Sgpt. 17, 1946. w. l. GLADFELTER ET AL 2,407,776

. CAN BEADING MACHINE Filed June 22, 1945 '7 Sheets-Sheet 7 PatentedSept. 17, 1946 UNITED STATES PATENT orricn' CAN -BEADING MACIHNE WiltieI. Gladfelter, Philadelphia, Pa., and Walter A. Ehrlich, Bridgeport,Conn., assignors to Crown Can Company, Philadelphia, Pa., a corporationof Pennsylvania Application June 22, 1943, Serial No. 491,836

12 Claims. 1

The present invention relates to an improved machine for impressingstrengthening ribs or beads in the cylindrical surfaces of can bodiesand the like. Such strengthening beads are conventionally employed incan bodies toprevent denting or collapse thereof and to make possiblethe use of lighter sheet metal stock than would otherwise be possible.In order to decrease the thickness of the sheet metal employed in themanufacture of can bodies, attempts have been made to form thestrengthening beads of maximum depth, thereby to compensate for thestrength and stiffness ordinarily imparted to th bodies by heavierstock.

In accordance with conventional methods and machines, prior to thepresent invention, strengthening beads have been formed in thecylindrical side walls of can bodies by the use of can body supportingmandrels having peripheral grooves formed therein, and cooperating canbody beading rolls positioned exteriorly of the can bodies and havingcomplemental ribs thereon. In these machines, the bodies are rolledbetween the mandrels andthe beading rolls, and the beads therebyimpressed. An example of a machine of the prior art is shown in thepatent to Kreuger 2,081,042. In such'machines, the can bodies aresubjected to the action of instrumentalities of this type and thestrengthening beads are formed therein by cooperating ribs and grooveson the surfaces of the beading rolls and can supporting mandrels,respectively. The rolling force is transmitted from the can supportingmandrel, through the can body thereon, to the exteriorly positionedbeading roll, by means of a plurality of rubber rings interspersedbetween the bead forming or die rings of hardened metal. When attemptsare made with machines of the type heretofore used, to increase thedepth of the strengthening beads, a limit of depth is soon reached,beyond which the beads cannot be formed, because of a failure of therubber rings to transmit rotational forces from the inner can supportingmandrels to the exteriorly positioned beading rolls, particularly at theside seams of the can bodies where four thicknesses of metal must passthrough the bight between the mandrels and rolls and between the beadingrings. It has been found in practice that when attempts are made to formdeep beads in can bodies, the side seams will not pass between themandrels and the rolls, but, on the contrary the mandrels will slip andwill fail to rotate the can bodies and the beading rollswhen the sideseams are encountered.

The present invention has for its purpose to overcome all of thedifliculties encountered with machines of the prior art.

A primary object of the invention is to provide a machine capable offorming in the side walls of can bodies, reinforcing ribs, grooves orbeads of greater depth and uniformity than has been possible heretofore.i

A further object is to provide means for preventing slippage between theinner and outerbeading rolls of can beading machines, or, in otherwords, between the can supporting mandrels, the can bodies and thebeading rolls.

Another object. is to provide means which will make it possible to applygreater beading pressure to the can bodies, yet which willfacilitatepassage of the side seams through the bight between the mandrels and thebeading rolls.

A further object is to provide means for supporting the free ends of theinternal beading rolls or can supporting mandrels, to the end that theymay withstand greater beading pressure applied thereto by the externalbeading rolls.

Still another object is to provide an improved means for rotating thecan body supporting mandrels and, in combination therewith, to provideimproved means for imparting positive rotation to the beading rolls,irrespective of their radial positions relative to the mandrels.

. Other and further objectsand advantages of the invention will beapparent to persons skilled in the art, from a consideration of thespecific embodiment of the invention shown in the accompanying drawings,in which:

Figure 1 is a side elevation of the apparatus.

Figure 2 is a vertical longitudinal section.

Figure 3 is a vertical transverse section taken substantially on line3-3 of Figures 1 and 2.

Figured is a similar section taken on line 44 of Figures 1 and 2.

Figure 5 is a similar section taken on line 5-5 of Figures 1 and 2.

, Figure 6 is an enlarged elevational View of a stationary cam forimparting radial movement to the beading rolls.

Figure '7 is an enlarged detail view of a preferred form of gear traininterconnecting the includes end frame members I2, projecting upwardlytherefrom and serving to support, a stationary horizontaly disposedshaft I3. Upon the shaft there is a main turret |.5 comprising,

spaced heads I6, I! and a substantialy cylindrical connecting rim l8,journalled on bearings I9 and 29. A cylindrical turret extension 2|,connected to the head projects lateraly, coaxially with the shaft l3,toward the opposite end of the machine, where it is secured to a largespur gear 22, journalled on the shaft l3 upon bearings 23. The turretextension 2| comprises a cylindrical portion 24 of reduced diameter andanother cylindrical portion 25- of large diameter connected thereto by aradial Web 25' provided with a plurality of pairs of guiding bores 25,for the reception of can body carrying rods 21, 28,, described in detailbelow. At the end adjacent its connection to the gear 22, the turretextension is provided with an inwardly projecting flange 29, similarlyprovided With bores 39 for supporting and guiding the rods 21, 28.

It will be noted that the turret IS, the turret extension 2| and thelarge spur gear 22 are all interconnected for rotation upon thestationary shaft |3 in unison. The shaft carries a cam barrel 35',secured against rotation by a key 36, and having a pheripheral cam trackor groove 31- formed therein, provided with an advanced section at itsupper portion and a retracted section at its lower portion. Camfollowing rollers 38, carried by brackets 39, fast upon the pairs ofrods 27, 28, are disposed in the cam track- 31, to reciprocate the rodslongitudinally, as the turret revolves about the shaft l3.

As indicatedin Figures 4, 8 and 10, the slide rods 21', 28 carry canbody end engaging plates 49, 41 and side wall engaging elements 42, 43,adapted to advance the can bodies from an infeed position onto theassociated beading mandrel, into a, beading position and to retract thesame therefrom as the rods approach a discharge position. In otherwords, the rods 21, 28 and the can body engaging members carriedthereby, which reciprocate as the turret revolves, serve to move thecans to and from operative relation to the beading instrumentalities.

As indicated in Figure 4, an infeed star wheel or spider 45, fast on ashaft 46, is positioned adjacent the bottom of an infeed chute 41, downwhich the container bodies roll by gravity from the preceding machine inthe line. The star wheel 45 isrotated in timed relation to the rotationof the turret, so that can bodies are fed into the spaces between therods 21, 28, the. end guide plates 40, 4| and the cradle members 42, 43,when the rods are intheir retracted position, as shown at the bottom ofFigure. 2. As thecans move around with the can. holders on the turret,and as they are advanced by the movement of the rods, they are supportedby a curved, forwardly leading guide p1ate48 until they have been placedupon and are supported by the beading mandrels, hereinafter described.

After the beading operation has b en Go pleted, the rods 21, 28 and thecan engaging members carried thereby are retracted, as they approach adischarge chute 49, which receives the can bodies by gravity when theyare stripped from the beadin mandrels by this retraction. The chute 49preferably comprises a. pivoted section 59, connected by a.spring-pressed. link 5| to a limit switch 52, adapted to cut off themain driving motor in the event of a jam in the line next. machine inthe line. V

The head lb of the turret (Figs. 2, 5 and 10) has a plurality ofrearwardly projecting, arcuate of can bodies moving from the machine tothe flanges 53 formed integrally therewith and shapedto provide seats54, for laterally projecting wings associated with caps 55 formingportions of rearwardly extending tubular sleeves 56, The sleeves 55 havebearing assemblies 51, 58 at their opposite ends, in which spindles 59are journalled. Each spindle carries on its rear end a spur gear 60 andon its forward end a beading mandrel 6|, composed of alternate rubberand steel rings 62, 63, the latter having, beading grooves 64 formed intheir peripheries. The mandrel is provided at its rear end with a hub 65terminating in a spur gear'56, and at its forward end with a hub (ilscrewed onto the spindle 59 and having a reduced portion58 for thereception of a roller 99, held in place by an end cap 10, restrainedagainst endwise movement by a screw H and against rotation by a dowelpin 12.

It will be apparent that, by this construction, the rings 62, 63 may beremoved and others substituted, to accommodate can bodies of varioussizes and to produce strengthening beads of various spacings and depths.

The turret heads l6 and H are provided with a plurality of radiallydisposed bores or slideways i5, 76, which receive supporting means forthe beading rolls Tl, positioned radially inwardly of the outer beadingrolls or mandrels 6|. As shown in Figures 7, 8 and 10, each beading rollsupport comprises a rack sleeve 18 slidably mounted in one of the boresor slideways l5, l6 and having laterally projecting'rack teeth 79 formedthereon. At its upper end, the sleeve terminates in a platform 39 havingrecessed spring seats 8|, 82 formed therein, forthe reception ofrelatively heavy compression springs 83, 84, bearing upwardly against abearing bracket provided with 9, depending stem 86, slidably received inthe bore of the sleeve l8 and having a nut 81-, threaded on itsprojecting end, below the sleeve 18. The springs 83, 84 normallymaintain the bearin bracket 85 in the upwardly projected position, asdetermined by the engagement of the nut 87' with the end of the sleeve18, leaving a space 88 between the lower face of the bracket 85 and theupper surface of the platform 88. A cap 89, secured to the bracket byscrew 99, secures the bearing assembly 9| thereto.

Each bearing assembly 9| (Figure 10) supports one end of a spindle orshaft 92 for the beading roll 11, made up of a plurality of alternaterubber and metallic rings 93, 94, the latter beingprovided withoutwardly projecting beading ribs 95, positionedin alignment with theheading grooves 64 on the outer beading roll or mandrel 6 I At the rearend; each roll shaft 92 carries a gear.

96 of slightly smaller diameter than'the. beading. roll.

For purposes hereinafter explained, thediam eters of. the gears 66 and95 are of the same relative proportion as the diameters of the bead- ,7

ing rolls 6| and 93.

'Ihe heads I6, I1 of the turret also carry a plurality of rock shaftsI00, journalled in appropriate apertures therein andprovided with teethIOI in mesh with the rack teeth 91. Each shaft I carries, on its rearend, a crank arm I02, having a roller I03 journalled on a stud I04 anddisposed in a cam groove I05 formed in a cam plate I06, carried by theshaft I3 and restrained against rotation by a key I01. As shown in Fig-.ures 11 and 12, the angular relation between the crank I02 and the rockshaft I00 may be adjusted by means of a worm screw I 08 mounted in abore I09 in the crank and having its threads disposed in engagement withperipheral teeth IIO formed on the shaft I00. Rotation of the screw I08imparts rotational adjustment to the rock shaft I00, after the manner ofa worm gear, and when the desired adjustment has been effected, thescrew maybe locked in position by a nut I I I.

I As shown in Figure 13, the cam following roller I03 is journalled uponthe end of the stud I 04, with a bushing I I2 interposed, lubricantbeing provided by bores H3, and the stud being held in place by a pin II4.

By reference to Figures 5 and 6, it will be apparent that, as the camfollowing rollers I03 enter the radially outermost portion I05a of thecam track I05, the rock shafts I00 will be oscillated. This movement istransmitted by the pinion teeth IOI to the rack sleeves 18, to projectthe beading rolls 11 outwardly into beading engagement with can bodieson the mandrels BI. The lost motion connection between the bearingbrackets and theplatforms 80, provided by the spaces 88, permits thecompression springs 83, 84, to yield when the side seams of the canbodies pass through the bight between the beading rolls. However, thesprings 83, 84 are sufficiently powerful to apply a substantial beadingforce to the side seams, so that the latter are provided withstrengthening beads, similar to the other portions of the can bodies.The use of heavy compression springs is desirable, since they make itpossible to apply sufficient compression forces to form deepstrengthening beads in the can bodies, yet they permit the rolls toseparate whenthe side seams pass therebetween, thereby preventingslippage between the beading rolls and thecan bodies.

The gears 50, fast upon the ends of the spindles 59, are all in meshwith an orbit gear I20 carried by a hub I2I journalled on the shaft I3by bearings I22. The hub I2-I also carries a gear I23 in mesh with asimilar gear I24 fast upon a rotatable shaft I25 journalled in the frameII at one end by bearings I26and in the frame I2 at the other end bybearings I21, an intermediate portion of the shaft being supported inbearings I28, carried by an upstanding portion I29 of the forwardportion of the frame I2. The shaft I25 also carries a spur gear I30,held fast thereon by a. key I3I and disposed in mesh with the mainturret gear 22, whereby the turret is revolved. A motor I32 (Fig. 1)connected through a speed reducer I33 to a sprocket or pulley I34 drivesthe shaft I25 by a belt or chain trained about a sprocket or pulley I35fast on the end of that shaft.

From a consideration of the above arrangement, it will be appreciatedthat the drive shaft I25 serves to rotate the turret and the turretextension by means of the gears I30 and 22 and that the orbit gear I29rotates each of the mandrel supporting spindles 59 through itsconnection with the gears 60. The ratio between the gears I24, I23, I20and 50 is such that the spindles are rapidly rotated'in the desireddirection, at the desired speed. By changing the relative sizes of thegears I24 and I23, the speed of rotation of the orbit gear I20 and ofthe spindles may be varied at will.

An important feature of the machine of the present invention is the useof means for positively driving the radially movable inner beading rolls11,'from and at the same peripheral speeds as the outer beading rolls orcan body supporting mandrels 6 I. A direct geared interconnectionbetween these rolls is diflicult, if not impossible, to employ, in viewof the fact that" the inner series of rolls are moved a substantialdistance, radially with respect to .the outer seriesof rolls, to permitthe can bodies to be passed over the free ends of the outer rolls whencans are fed into and removed from beading position. It is diificult ifnot impossible to assure meshing of such gears, when the rolls arebrought together. The pres ent invention obviates this difliculty byproviding an offset gear train, continuously in mesh with the gears 56and 96 which permits radial movement of the spindle 92, withoutdisengagement of the gear train.

Referring to Figures 7 and 9, the turret head I6 carries a plurality ofplate-like brackets I40, secured thereto by screws MI and having anoffset portion I43 providing a recess for a nut I44, secrewed upon astud I45 extending through the plate and carrying a spur gear I46, inmesh with the gear 55. A similar gear I41, in mesh with the gear I46 andalso with the gear 95, is journalled on a stud I48 carried by the lowerportion of the outwardly projected offset portion I43 of the bracketI40. As indicated by dotted lines in Figures '1 and 8, lubricant for thegears I46, I41 is supplied by a bore I49 in the plate I40, leadingthrough branch conduits I50 to conduits I5I in the studs.

It will be seen, by reference to Figure '1, that the gear 95, fast uponthe spindle 92 and posi tioned to one side of the gear I41, is free tomove radially of the turret a short distance, without becomingdisengaged from the gear I41. Hence, the inner and outer beading rollsare continuously rotated at the same peripheral speed, regardless of theradial position of the inner roll 11.

As stated above, the inner beading rolls 1! are 7 urged outwardlyinto'beading relation to the can bodies 200 on the mandrels BI with verysubstantial force, by means of the cam followers I03, cranks I02, rockshafts I00, and the rack and pinion devices heretofore described. One ofthe l important features of the machine of the present invention is theprovision of means for preventing displacement of the free ends of themandrels this portion of their revolution with the turret,

no force is applied to the mandrels by the beading rolls, as indicatedin the lower half of Figure 4.

Between the supporting frames II and I2, and mounted upon the base I0,there is an intermediate supporting frameI, having upwardly projectinglimbs I50, I51 disposed on opposite sides of the turret and terminatingat their upper ends in seats I58, I59, upon which an overhanging arch.member I00 is mounted. The arch has a downwardly facing arcuate trackvsurface ,Hi'l', positionedto be engaged by the rollers 69 on the endsofthe spindles 59, at. the outer or free ends offthe beading mandrels.The vertical position of the arch I60 and the arcuate traclci surface lEilmay be accurately determined by the use of sh-imsor the like on theseats H58, [59; in order that the track will be firm-1y engaged by therollers on the mandrels as they revolve-with the turret and rotate ontheir own axes. The arch elfectivelyprevents any upward or outwarddisplacement of the mandrels under the influence of the force appliedthereto by the beading rolls. Hence, it is possible to apply to the canbodies Zllllmnthe beading: rolls considerably more pressure: than'inmachines of similar design heretofore used.

, Itisthought that the operation of the machine of. thepresent inventionwill be entirely clear to. those skilled; in the art from the foregoingdescription. The turret I5 and the turret extension. 2 Izare rotated asa unit upon the stationary horizontal shaft 13 by the drive shaft 25,through gears 730' and 22'. As the turret rotates, the rods 21, 28 andthe can carriers secured thereto are reciprocated longitudinally, toplace can bodies up'onand to remove them from the mandrelstl, the canbodies being delivered to the carriers by th star wheel 45 and beingconveyed away from the machine by the discharge chute it.

After the can bodies have been placed upon the mandrels, during theirtravel from the infeedstation a (Fig. 4) to the station b, the beadingrolls 1 1 are moved radially outwardly into contact with the can bodies,as indicated at station 0, displacement of the mandrels 6! beingprevented by the archlfil).

During all of these movements, the beading mandrels and the beadingrolls are positively rotated at the same peripheral speed as a result oftheir interconnection through gears 66, I46, MT and 96. Gear I24 ontheshaft I25 drives the spur gear I23 and the orbit gear I25, which inturn drives the gears 60 and the spindles 59. Hence, as the beadingrolls and the can bodies pass from station 0 through stations d and e,the can bodies are rolled between the heading rolls and strengtheningbeads are formed therein. As the side seams of the can bodies passbetween the. rolls, the latter are permitted to separate somewhat, bythe coil compression springs 83, 84.

Between stations 6 and f (Fig. 4), the inner beading rolls are movedradially inwardly by the cam following cranks and rock shafts, and thecan strippers on. the rods 21, 28 remove the can bodies from themandrels, in order that they may drop from the machine into thedischarge chute, substantially at the station g.

It must be understood that the invention is not limited to the detailsof construction and arrangement of parts included in the specificembodiment shown in the accompanying drawings and described above, sincemany modifications will occurto those skilled in the art from aconsideration of this disclosure. All modifications coming within thescope of the appended claims and their equivalents are included in theinvention.

We claim:

1. A can body beading machine comprising a rotatable turret, a pluralityof pairs of parallel beadingrolls carried by the turret and journalledfor rotation on radially spaced axes, one roll of each pair beingsupported at one end only, for the. reception of, can. bodies overitsother end, a

r 8 gearfixeduponthe othertend of each roll, afpair of onsetintermeshi'ng' idler: gears. carried; by the turret adjacent each pairof-roll. gears in mesh therewith and constituting a driving connectiontherebetween, means for forcefully moving the other roll of. each pairsubstantially radially of the turret toward the first mentioned roll to.apply beading pressure to the can bodies thereon while maintaining saiddriving connection, means for positively rotating the firstmentionedfroll of each pair, and means adjacent the path of; movement ofthe free endof the first mentioned roll of each' pair for preventingdisplacement thereof under the influence of said. beading pressure.

2'. A can body beading machine comprising. a rotatable turret, acircular series of. beading 'rolls carried by the turret, a secondseries'of beading rolls carried by the turret radially inwardly" of thefirst series and disposed in parallel relation thereto, means forrotatably supporting the rolls of theouter series at one end only,whereby a, can body may be passed over theunsupported end, means forrotatably supporting the rolls of the inner series at both ends, meansfor forcefully moving the lastementi'oned supporting means-and the:rolls carried thereby radially outwardly into beading relation to can.bodies on the first-mentioned rolls, a plurality of gear trainspermanently interconnecting each pair of inner and outer rolls; meansfor positively rotating each outer roll, and meansadj acent the path ofmovement. of the-free" ends of the outer series of rolls for resistingthe beading force applied thereto by the inner series of rolls and forpreventing displacement thereof under said force.

3. A can body beading machine comprising ,a rotatable turret, aplurality of parallel beading roll spindles arranged in a circularseries and journalled in the turret for rotation about their axes, abeading roll projecting from one end of. each spindle andhaving a freeend. remote from the spindle journal, whereby can bodies. maybe passedthereover, a second. set of beading rolls arranged in a circular seriesin. parallel relation to' thefirst-mentioned rolls, means for movingeach roll of the second toward and from a corresponding roll of thefirst, a gear train interconnecting the rolls for'rotation in unison,means v for forcefully urging each roll in the secondseries into contactwitha can body carried bythecorresponding roll of the first series, andmeans at the free end of. each rollof the first series for resisting theforce thereby applied thereto.

- 4. A can body beading machine: comprising; a-

, rotatable turret, means. for rotating said turret,

a plurality of, pairs of beading rolls journalled in said turret andeach comprising an outer roll. supported at one end only and having afree end over which the can bodies may be passed and an inner rollmounted for outward radial movement into beading contact with a can bodyonthe outer roll,'means for forcefully moving the inner roll outwardly,and, stationary means opposite the free; ends of the outer rolls forresisting the force F applied thereto by the inner roll.

5'. A can body beading machine comprising a turret mounted for rotationon a horizontal axis, an outer series of beading mandrels, each havingone end j ournalled' in the turret and the other end free for thereception of a can body, a roller on the free end of each mandrel, aseries: of bead-- ing rolls carried by the turret in parallel relationto. the mandrels, means for urging. the beading, rolls radially againstcan bodies :on, the man-- drels to impress circumferential beads.thereon,

and a stationary track positioned opposite to said rollers on themandrels and resisting the force applied thereto by the beading rolls toprevent displacement of the free ends of the mandrels.

6. A can body beading machine comprising a turret mounted for rotationon a horizontal axis, a plurality of pairs of beading rolls journalledin said turret, each pair comprising one roll supported at one end onlyand having a free end over which can bodies may be passed and anotherroll mounted for radial movement into beading contact with a can body onthe first roll, means for revolving the turret and for rotating therolls, there being can body infeed and outfeed stations adjacent oneportion of the path of revolution of the turret, a stationary arcuatetrack extending along another portion of said path and positionedadjacent the free ends of the first-mentioned rolls, and means forurging the secondmentioned rolls against the can bodies on thefirst-mentioned rolls to impress circumferential heads therein, saidtrack serving to prevent displacement of the free ends of the rollsunder the influence of the force applied thereto.

7. A can body beading machine comprising a turret mounted for revolutionon a horizontal axis, a plurality of pairs of beading rolls journalledin said turret, each pair comprising an outer roll supported at one endonly and having a free end over which the can bodies may be passed andan inner roll mounted for outward radial movement into beading contactwith a can body on the outer roll, means for revolving the turret andthe rolls, means adjacent the lower portion of the path of revolution ofthe rolls for deliv- :1.

ering can bodies to and removing the same from the outer rolls, meansfor forcefully moving the inner rolls outwardly as the rolls traverse anupper portion of said path of revolution, and an arcuate trackoverhanging the free ends of the outer rolls during their movement alongthe lastmentioned portion of said path to resist the force appliedthereto by the inner rolls.

8. A can body beading machine comprising a turret mounted for revolutionon a horizontal axis, a plurality of pairs of beading rolls journalledin said turret, each pair comprising an outer roll supported at one endonly and having a free end over which the can bodies may be passed andan inner roll mounted for outward radial movement into beading contactwith a can body on the outer roll, said outer rolls each having ananti-friction roller journalled on its free end, means for revolving theturret and the rolls, means adjacent the lower portion of the path ofrevolution of the rolls for delivering can bodies to and removing thesame from the outer rolls, means for forcefully moving the inner rollsoutwardly as the rolls traverse an upper portion of said path ofrevolution, and an arcuate track overhanging the rollers on the freeends of the outer rolls during their movement along the lastmentionedportion of said path to resist the force applied thereto by the innerrolls.

9. A can beading machine comprising a supporting frame, a turretjournalled in the frame for revolution on a horizontal axis, a pluralityof horizontal can body receiving mandrels journalled in the turret forrevolution therewith, a plurality of horizontal, radially movable canbeading rolls mounted inwardly of the mandrels for revolution therewith,infeed and outfeed means carried by said frame for delivering can bodiesto and removing the same from said mandrels adjacent the lower portionof the path of revolution of the turret, an arcuate track carried by theframe and overhanging and contacting the free ends of the mandrels alongan upper portion of said path of revolution, and means for forcefullymoving the beading rolls radially outwardly into contact with can bodieson the mandrels as the latter move along the last-mentioned portion ofsaid path, said track serving to prevent displacement of the mandrelsunder the influence of the force applied by the beading rolls.

10. A can body beading machine comprising a rotatable turret, aplurality of pairs of beading rolls journalled in the turret, each paircomprising an outer roll supported at one end and having a free end overwhich the can bodies may be passed and an inner roll supported at bothends and mounted for outward radial movement into beading contact With acan body on the outer roll, and means for moving the inner rollsoutwardly and into such contact, the last-mentioned means comprising abearing bracket for each end of each inner roll, a supporting platformfor each bracket, compression spring means between each bracket andplatform, a rack associated with each platform, and pinion means forreciprocating the racks, said compression spring means serving to permitthe rolls to separate slightly as the side seam of the can body passestherebetween.

11. A can body beading machine comprising a rotatable turret, aplurality of pairs of beading rolls journalled in the turret, eachcomprising an outer roll supported at one end and having a free end overwhich the can bodies may be passed and an inner roll, and means forsupporting the two ends of each inner roll and for moving the sameoutwardly into beading contact with a can body on the outer roll, eachof said supporting and moving means comprising a hollow depending sleeveguided for radial movement in the turret and having rack teeth thereon,a platform carried by the sleeve pinion means in mesh with said teeth toreciprocate said sleeve and the platform, a bearing bracket, in whichthe roll is journalled, mounted above the platform and having a stemextending through said sleeve, and spring means between the platform andthe bracket.

12. In a can body beading machine of the type wherein a plurality ofbeading rolls are mounted for radial movement into beading relation tocan bodies supported upon mandrels carried in turn by a rotatableturret, improved means for supporting the beading rolls, comprising aplatform adjacent each end of each roll having a rack sleeve mounted inthe turret, a journal bracket having a stem slidably mounted forcoaxial. movement in each sleeve, compression spring means interposedbetween each platform and each bracket, and pinion means forreciprocating said rack sleeve.

WILTIE I. GLADFELTER. WALTER A. EI-IRLICI-I.

